Langley, Russell, <br/><br/>
Practical statistics simply explained 

 - Rev. ed. 
 - New York :  Dover Pub. Inc.,  1968 
 - ix, 399 pages :  illus. ;  22 cm. 
<br/><br/> 1968 ed. has title: Practical statistics for non-mathematical people. 
<br/><br/><label>ISBN: </label>0486227294 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Statistics<br/>Probabilities